[vtkusers] Should I use one actor per renderer/renderwindow or can they share the same actor?

[Karthik Krishnan]

No you can't shallow copy.. each actor would need its own mapper. Mappers
can certainly not be shared. I don't think you can share the vtkProperty's
either, if you are using Shaders since will then consume graphic resources.



On Tue, Nov 1, 2011 at 9:26 PM, Bryn Lloyd <lloyd at itis.ethz.ch> wrote:

> Hi again,****
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> Actually, could I copy an actor using ShallowCopy in order to create
> separate actors for each renderer?****
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> Else, how can I transfer (or even synchronize) the actor parameters in a
> simple but complete way? I am thinking of general vtkProp(s), not just
> vtkActor.****
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> Thanks for any advice.****
>
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>
> --****
>
> Bryn****
>
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> *From:* Karthik Krishnan [mailto:karthik.krishnan at kitware.com]
> *Sent:* Tuesday, November 01, 2011 3:58 PM
> *To:* Bryn Lloyd
> *Cc:* vtk
> *Subject:* Re: [vtkusers] Should I use one actor per
> renderer/renderwindow or can they share the same actor?****
>
> ** **
>
> Even if it did work, it'd be quite fragile. I can imagine timestamp checks
> going wrong (these are used in the mapper to rebuild the geometric
> primitives etc). ****
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> I can see LODActors getting messed up, when computing last render time
> from a renderer, not realizing that its not the same renderer they rendered
> on previously. ****
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> Its best to create an actor per render window.****
>
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> --****
>
> karthik****
>
> On Tue, Nov 1, 2011 at 4:24 PM, Bryn Lloyd <lloyd at itis.ethz.ch> wrote:****
>
> Hi****
>
>  ****
>
> I am working on an application with multiple render windows.****
>
>  ****
>
> Is it SAFE to use the same actor for each renderer/window, or should I
> create an actor per renderer?****
>
>  ****
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> BTW. Currently it is OK if I have the same parameters (color, visibility,
> etc) in each renderer.****
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> Thanks for any suggestions****
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>  ****
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> Bryn****
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>  ****
>
>
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